You may have read recently about the Copyright Office "freeing the McFlurry" by granting a DMCA exemption for companies that reverse-engineer the error-codes from McDonald's finicky, unreliable frozen custard machines:
https://pluralistic.net/2024/10/28/mcbroken/#my-milkshake-brings-all-the-lawyers-to-the-yard
Under DMCA 1201, the Copyright Office hears petitions for these exemptions every three years. If they judge that anticircumvention law is interfering with some legitimate activity, the statute empowers them to grant an exemption.
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